APA (7. basım) Alıntı

Drucker, P. (2006). Management challenges for the 21st Century. Palgrave Macmillan Punl.

Chicago Style (17. basım) Atıf

Drucker, Peter. Management Challenges for the 21st Century. New York: Palgrave Macmillan Punl, 2006.

MLA (9th ed.) Atıf

Drucker, Peter. Management Challenges for the 21st Century. Palgrave Macmillan Punl, 2006.